Регистрация, проверка токена, обработка ошибок, сканирование

lib/purchase.dart

@@ -0,0 +1,101 @@
+import 'dart:convert';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'main.dart';
+import 'dart:async';
+import 'activate_token.dart';
+
+/// Экран проведения покупки.
+class PurchaseScreen extends StatefulWidget {
+  @override State createState() => new _PurchaseScreenState();
+}
+
+class _PurchaseScreenState extends State<PurchaseScreen> {
+
+	bool _loading = false;
+
+  @override Widget build(BuildContext context) {
+    return new Scaffold(appBar: _getAppBar(), body: _getScreen(context));
+  }
+
+  AppBar _getAppBar() {
+    return new AppBar(title: new Text("Проведение покупки"),
+      actions: <Widget>[new IconButton(icon: new Icon(Icons.help_outline), onPressed: () {})]);
+  }
+
+  Widget _getScreen(BuildContext context) {
+    return new Stack(children: <Widget>[_getScreenContent(), _getProgressIndicator()]);
+  }
+
+  Widget _getScreenContent() {
+    return new Container(height: 332.0,
+        child: new ListView(reverse: true, children: <Widget>[
+          new Column(children: <Widget>[
+            _getValueWithTitle('ФИО', 'Знаменитый Рокер Паук'),
+            _getValueWithTitle('Карта', 'B0399900702'),
+            _getValueWithTitle('Вознаграждение', '100%'),
+            _getButton(context),
+            _getButton(context)])
+        ].reversed.toList()));
+  }
+
+  Widget _getProgressIndicator() {
+    return new Center(child: _loading ? new CircularProgressIndicator() : null);
+  }
+
+  Widget _getValueWithTitle(String title, String value) {
+  	return new Column(children: <Widget>[
+  		new Row(crossAxisAlignment: CrossAxisAlignment.start, children: <Widget>[new Text(title, textAlign: TextAlign.left, style: new TextStyle(color: greyTextColor, fontSize: 14.0))]),
+  		new Row(crossAxisAlignment: CrossAxisAlignment.start, children: <Widget>[new Text(value, textAlign: TextAlign.left, style: new TextStyle(color: Colors.black, fontSize: 20.0))])
+  	]);
+  }
+
+ 
+  Widget _getButton(BuildContext context) {
+    return  new Container(margin: new EdgeInsets.only(top: 36.0), height: 42.0,
+     padding: new EdgeInsets.only(left: 40.0, right: 40.0),
+            child: new RaisedButton(child: new Text('ЗАРЕГИСТРИРОВАТЬ',
+                style: new TextStyle(color: Colors.white)),
+                onPressed: null,
+                color: primaryColor));
+  }
+
+  Widget _getCircularProgressIndicator() {
+    return new Center(child: new CircularProgressIndicator());
+  }
+
+  _register(BuildContext context) async {
+    // const platform = const MethodChannel('com.dinect.checker/instance_id');
+    // String url = intUrl + 'tokens/?_dmapptoken=' + intToken;
+    // String pos = await platform.invokeMethod('getInstanceID');
+    // print(pos);
+    // String userAgent = 'dm-checker-test v1.0.1';
+
+    // var body = {
+    //   'merchant_shop': merchantShop,
+    //   'pos': pos,
+    //   'description': userAgent + '-' + pos
+    // };
+
+    // print(url);
+
+    // for (var value in body.values) {
+    //   print(value);
+    // }
+
+    // httpClient.post(url, body: body).then((response) {
+    //   print(response.body);
+    //   Map parsedMap = JSON.decode(response.body);
+    //   token = parsedMap['token'];
+    //   platform.invokeMethod('saveToken', {'token' : token}).then((value) {
+    //     print(value.toString());
+    //   });
+    //   setState(() {
+    //     loading = false;
+    //   });
+    //   pushRoute(context, new FinishRegistrationScreen());
+    // }).catchError((error) {
+    //   print(error.toString());
+    // });
+  }
+}